Modified polytrifluorochloroethylene plastic for junction box of SF6 density relay

Abstract

The invention discloses modified polytrifluorochloroethylene plastic for a junction box of an SF6 density relay. Raw materials of the modified polytrifluorochloroethylene plastic in parts by weight are as follows: 20-40 parts of ethylene-vinyl acetate copolymer, 30-40 parts of polytrifluorochloroethylene, 5-15 parts polyacrylic acid, 5-20 parts of bisphenol A type polyarylester, 1-2 parts of dicumyl peroxide, 1-2 parts of diethylenetriamine, 1-2 parts of N,N-diethylethanolamine, 1-2 parts of cerium oxide, 0.5-1 part of lanthanum oxide, 1-3 parts of stearic acid, 1-2 parts of liquid coumarone, 10-20 parts of glass fibers, 20-40 parts of superfine modified kaolin, 5-15 parts of clay, 10-20 parts of glass beads, 10-20 parts of nanosilicon dioxide, 1-2 parts of an anti-ageing agent 264, 1-2 parts of an anti-ageing agent DPPD and 1-2 parts of p-phenylenediamine. The modified polytrifluorochloroethylene plastic disclosed by the invention has excellent heat resistance, ageing resistance and mechanical properties.

Description

technical field [0001] The invention relates to the technical field of SF6 density relays, in particular to a modified polychlorotrifluoroethylene plastic for a junction box of an SF6 density relay. Background technique [0002] SF6 gas density relay is used to monitor and control the density of protective gas SF6 in high-voltage power equipment. It is widely used in high-voltage circuit breakers, medium-voltage switches, gas-insulated equipment, high-voltage cables, transformers and transformers. It should be able to adapt to outdoor harsh environmental spare parts, and send out alarm signals in time for the leakage of SF6 gas in electrical equipment. , blocking signal or overpressure signal to ensure the safe operation of electrical equipment, but the heat resistance, aging resistance and mechanical properties of the SF6 density relay junction box shell can not meet the demand. Contents of the invention [0003] The invention provides a modified polytrifluorochloroethyl...

AI Technical Summary

Problems solved by technology

It is widely used in high-voltage circuit breakers, medium-voltage switches, gas-insulated equipment, high-voltage cables, transformers and transformers. It should be able to adapt to outdoor harsh environmental spare parts, and send out alarm signals in time for the leakage of SF6 gas in electrical equipment. , blocking signal or overpressure signal to ensure the safe operation of electrical equipment, but the heat resistance, aging resistance and mechanical properties of the SF6 density relay junction box shell can not meet the demand